What is the reason for 7.7 ?

Rating: 2/10 (13 March 2014)

I've got to stop watching the ratings first. It's the best option to avoid the big movie let downs. Same story here, attracted by the ratings, I was looking forward to see "28 days later" impatiently.
First minutes looked promising (except the monkeys situation). I like the sequences with individuals walking around while nobody else is there. The film looked cheap, but that is not a big issue from my point of view. Now, the biggest problem is the actual plot. There are way too many holes. Im prepared to take some amount of nonsensical scenes while watching this kind of movies but this film went over my limits. Among the most obvious (I am sure that one could count over one hundred idiotic sequences here but i will be brief):
-The Selena is tough as nails from the beginning, girl with no problem killing her partner. She is prepared to let others in a trouble in order to survive but later on she turns out to be sensitive and pretty weak little girl. On the other hand, the weak and confused bicycle courier Jim becomes strong and battle experienced at the end and takes out the evil military squad by using his hands and unleashing the zombie in order to save the girls(what ???). And I almost forgot that when he finds a gun, he gets rid of it, because his hands are so much more effective against trained soldiers.
-After saving Jim's life Mark tells him there is no electricity right? So how is it possible that 3 minutes later Jim watches a video tape? And where the light in the store came from? Did someone at least read the script before making this movie?
-Why have all the people abandoned all protection clothes at the beginning? (Mark and Selena, Daddy, Soldiers, all of them were protected as we saw them first time) If the Daddy would have kept at least the goggles, he could live.
-Jim continues to do stupid decisions. What was the reason he went inside the gas station? It was completely unnecessary and he was risking his life just to feel free or what. And why did they take the tunnel shortcut? The Daddy was inconsistent here. First time we saw him, he was a man dedicated to protection of his daughter, but now he was risking lives of his crew and almost got caught by zombies and then made fun of it.
-Why the soldiers show up on the road block so late, I mean after the Daddy gets infected? Wouldn't it be better to say 'Hello' as soon as possible and avoid problems? While the infected were moving every time like freaks on a speed, I wouldn't have a hard time telling the infected and healthy apart.
-Strange that the soldiers got crazy so early. The evac took place one month ago, that is a short time to become a psycho with sex as the only thing you care about.
-Looking at the infected soldier on the chain I had the feeling it wasn't a good idea mainly if you walk through wrong door at night to take a leak. When they watched the infected soldier, they didn't keep any safe distance which should avoid landing infected blood on their faces.
-Considering their survival situation, why were the soldiers wasting bullets while looking for Jim just to make sure he isn't for example in a tent over there instead of making few steps forward? The execution of Jim and sarge was stupid too. I think the major needed every man able to fire a weapon to increase their chances to survive.
I have another 99 problems with that but let me skip it. Big let down considering the film looked good at the beginning and the promising ratings here.